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Make more threading improvements

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- ASAN memory morgue is now lockless
- Make C11 atomics header more portable
- Rewrote pthread keys support to be lockless
- Simplify Python's unicode table unpacking code
- Make crash report write(2) closer to being atomic
- Make it possible to strace/ftrace a single thread
- ASAN now checks nul-terminated strings fast and properly
- Windows fork() now restores TLS memory of calling thread
This commit is contained in:
Justine Tunney 2022-11-01 22:36:03 -07:00
parent d7b88734cd
commit e522aa3a07
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GPG key ID: BE714B4575D6E328
189 changed files with 1363 additions and 1217 deletions
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7
third_party/python/Modules/cjkcodecs/gbkext_decmap.c vendored
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@ -1,8 +1,7 @@
#include "libc/x/x.h"
/* clang-format off */
static bool gbkext_decmap_once;
static void *gbkext_decmap_ptr;
static _Atomic(void *) gbkext_decmap_ptr;
static const unsigned char gbkext_decmap_rodata[] = {
0xed, 0xd0, 0xdf, 0x4b, 0x13, 0x00, 0x1c, 0x04, 0xf0, 0xe9, 0x5a, 0xae, 0x96,
0x3f, 0x72, 0xd5, 0x56, 0xcb, 0x52, 0xa7, 0x6b, 0x6e, 0xb5, 0xcc, 0xd9, 0x1a,
@ -36,9 +35,7 @@ static const unsigned char gbkext_decmap_rodata[] = {
};
optimizesize void *gbkext_decmap(void) {
if (gbkext_decmap_once) return gbkext_decmap_ptr;
return xload(&gbkext_decmap_once,
&gbkext_decmap_ptr,
return xload(&gbkext_decmap_ptr,
gbkext_decmap_rodata,
370, 1024); /* 36.1328% profit */
}